Mine car



| ALMQulsT Dec. 9, 1930.

MINE CAR `Filed oct. 5, 1928 Patented Dec. 9, 193() LEoroLn ALMQUIST,

EoUNnnYcoMPANY, E NEW YJoEE N Y., ajcoEronaTIoN `or NEW JEEs'EY Y V""*ivrINE CAE Application fiiedoctoberraisas.iseriaiiNm alaa.`

This invention relates to drop bottommine cally operates the latch of a second door to release or lock the secondi'door as l the first door is lowered or raisedand itis an objectl of this invention. to `provide improved means for hinging and locking doors of mine carsy of the type described whichwillbe ofsimple and rugged construction, of few partsk read- 10.; ily. applied, reliable in operation and easily maintained infserviceable condition where extensive repair shops are not available. Y i Other objects and advantages of this invention-willbe apparent from the following'de-v` scription, taken in conjunction with the ac;-

companying draw1ngs,1n whlch:

Figure l 1s a fragmentaryvertlcal.longitudinal section takenat one of the axlesof the car Vand showing the door hingingv and latchng means, the doorsfbeing inclosedfpo-` sltion;

Fig. 2 is Va section taken on the line 2-1-2 parts being brokenaway tofshow` oFig.l 1,V other parts more clearly;

being shown in the open position;

operatingv cam .shown detached;

Fig. 5 is a ragmentary'section showing a' modified form of the latch operating cam in4 engagement with the latch;

Fig. 6 -is a section taken Fig.5; and Fig. 7 isa view similar to Fig. 2 of a modified construction. i

The drawings show a fragment of a mine* car having'sills lthrough which extend axles 2 having wheels (not shown) thereon. The axles are journaled in""boxes.8 secured to the side sills. To thesills 1 are.attachedfhingel brackets 4 having openings to receive the axles 2 and outwardly extending ribsV or langes6 which extend aroundthe axle openings and the lower portions of which are bis furcated, vformingspacediarms.8. 'llhe arms'a on the line 6,-6-ofA f 8 are formedzwith alined circular-bearing" cars of the type inwhlch one door automati- .openingsin which are journaled bushings, 10 having;` rectangular yopenings., Fitting:V the' openings in thev bushings 10 are rectangular Vstraps 14 beingginserted vbetween-the arms/8V of the hinge brackets 4. i The hinge pins 12 project beyonltheiarms 8 ofthefhnge brach by meanso hinge straps 18 are latches 20 comprisingangle plates 22extending,substan-V tially ffromgsillfto sillffand bracedY by the ets;4and` have mounted thereon cams() l formedwithfthe Irectangular,slots 32 which lit theihinge pins 12. 'Journaled on-the axles 2` 0E JERSEY CITY, NEWJEESEY, Ass'rGNoi. To AMERICAN" can AND 505 shapediropeningsinthehingerstraps14 atl flanged braces 24'wherethey are connected to theV hinge lstraps 18. ,Projecting laterally. ronr-theliianges26 `ofthe braces24 are arcnate ribs 28s n 4 In :assembling this construction7 the latch 2O is jonrnaledon the axle 2the hinge, straps 14 are placedzbfetween the arms 8 of the hinge bracketsf,andfthe;hinge pins512 are insertedA Fig. 3 is aview similartoFig. l1, the doors.

l inthe openings in the bushingsfl() .and hinge r U f Straps 14; thlOugh `an opening-34provided Fig. 4 is a perspective viewof `the latchv infthe `flange 26 ofl thel brace24. .As the pinsy 12are inserted in the openings in thebushf ings 10E and hinge straps 14 .they are engaged initheaslots 82of5the cams 30. held Abetween the hinge `brackets 41and-therbracesw24 in position to engage with the ribsl 28 on the,v

ment of the pin in thefopposite direction is l, prevented by a cotter 36 inserted in an open- ,inginfthefpingg f Y y Y Y. To .thegupperporton of the ribs 6 there are securedbraces 38 which conform to the shape of the ribs and unite the ribs of oppositehinge brackets.` The braces 38 are provided withV outwardlyL projecting langes40 and 42 ,which\.extend-over the inner, edges of thel ment ofj-thepinwith the sill 1, while move-v iol doors hinged to the adjacent brackets and over the latches mounted on the adjacent axles and the free edges of the doors supf ported by the latches so that the braces 38f extends beyond the cam and into anelon.VV

gated opening 34 formed in the iange26 of brace 24 to allow full movement of the latch 20. The extended endo lhinge pin 12 is provided with anfopening6l forlinsertion', of a cotter if'desired." -Brace 24f'is recessed at' 62 to clear the bosses 60. i,

In the modification shown which forms but a single arm provided with a` circular bearing recess 46.-",In'fth1s construction, the hingevstrap 14 is -formed with` a`trunnion 48 andlacaiu 50 integral therewith; the trunnion 48 engaging in the bearing irecess 46 while the cam 50 engages in the slot formed by the rib 28., In assembling this construction, the hinge strap 14V is'mounted in thebearing recess 46 before the door 16 is secured thereto. s

In both constructio s, the operation of the door 16 is controlled by any desired means,

as,"for instance, a; suitable latching mecha nism operated byl a. track ramp. When the door 16 is released and drops, the cam 430 or 50 is operated therebyand through its engagement with the rib 28 withdraws the latch 20 from beneath the free end-of the door 52 permitting the Vdoor to drop. The door restoring device `will restore the door 52 to its "ffraised position before the door 16 is raised,

and when the door 16 is raised the cam- 30 or 50 will operate the latch 20 toits door holdl ing position; Restoring the door 16 to its iraised position will bringthe door into len-` gagement with its retaining latch.

The drawings disclose the-preferred embodiment of the invention, butl it is to be understoodV that they areior illustrative pur- Vwithout vention.

IVhat is claimed is: 1

1.'In a mine car, a drop door pivotally mounted on the car, a latch or'holding said door in closed position, a second drop door, a hinge for attaching said second door to the car comprising a rectangular hingepin and departing from the spirit of the ina. kcam having an open-ended slot receivingl said hinge pin and operated by said hinge pin to operate said latch.

`2. In a mine car, a drop door pivotally mounted on the car, a latch for holding said door in closed position, a second drop door,

in Fig. 7 the"4 hinge bracket 4 is provided jwith, .2L IibcGfn a hinge strap having rectangular openings attached to said door, a hinge bracket attached tosaid car, a rectangular hinge pin fitting the openings inl said strap and journaled in said bracket and a cam having an open-ended slot receiving said hinge pin and operated by said hinge pin to operate said latch. i

3. In a mine caia drop door pivotally mounted on the car, a latch for holding said door inl closed position, a second drop door, a hingev strapattached to said second-door, a hinge bracket attached to said car, a rectanguond door to the cai' and acam having Van openended slottting said hinge pin and .operated by said hinge pin to operate said latch. ,1. 'v

4. In a mine a drop door pivotally mountedonthecalr, a latch orjholding said (door in closed position, a second drop door,

lar hingepin itted in said strapv and journaled insaid bracket for attaching said secahinge strap attached to said second-door and having a rectangular hinge pin opening, a hinge bracket attached to the car and yhavingcircular openings therein, `bushings hav- Y ing rectangular openingsjjournaled in said hingebracket, a rectangular hinge pin mount# ed in said'hinge strap and bushings and connecting said second. door vto the car and a'cam det'achably jmounted ony said hinge rpin for operating said latch.' f

v5. In a mine car, a` drop door.` pivotally mounted on the car, a'latch extending from side to side of said door for holding said door in closed position, a second drop door and a cam operating with-said second drop doorl to operate said latch torelease Vand locking positions, said latch holding said cam in operative relation to said second drop door.

6. In a mine car, a drop door pivotally therein, a seconddrop door and a cam operatlng with said'second drop door and engaging in said slot to operate said latch to release i and locking positions, said latch holding said posesonly, 4and that various changes in the form and proportions of the device may be made within the scope of the appended claims edge of said door for holding said door in.V

closed position,"said latch having open-ended slots therein, a second drop door, hinges piv-V otally connectingy said second door to the car and cams operated byV said hinges and engaging in said slots to operate said latch to release and locking positions, said latch holding said cams in operative relation to said hinges.

8. In a mine car, a .drop door pivotally mounted on the car'7 a latch pivotally mount-v ed on the car and engaging the free edgeof said door for holding said door in closed po-V sition, said 'latchf havingeopencnded slots lio iso

therein, a second drop door, hingestraps at-A tached to said door and having angular openings therein, hinge brackets attached to thev car and having circular openings therein, bushings having angular Openings journaled in the openings in'said hinge brackets, angular hinge pins fitting the openingsl in said hinge straps and bushings and connecting said seconddoor to the car and. cains having open-ended slots therein fit-ted on said hinge pin and'engaging in the slots in said latch, said cams operating said latch to re` lease and locking position upon operationlof said second door. v i Y 9. In a mine car, a drop door pivotally mounted on the car, a latclifor said door, said latch having a rib forming an 'openended slot, a second drop door, land a hinge for attaching said second door to the car, said hinge having a cam operativelyv engaging in the slot formed by said ribto operate said latch, said latch holding said cam in operative relation to said hinge. t

10. In a mine car, ai drop door pivotally mounted on the car,a latch for-said door, said latch having a laterally projecting lange of arcuate form, a second drop door, and a hinge for attaching said second door to the car, said hinge having a cain engaging said flange to operate said latch, said latch holding said cam in operative relation to said hinge.

11. In a mine car, a dropdoor pivotally mounted on the car, a latch for said door, said latch having a brace provided With a laterally projecting arcuate flange forming an open-ended slot, a second drop door, anda hinge for attaching said second door to the car, said hinge having a cam engaging in the slot formed by the said angeto operate the said latch, said latch holding said `cam iii operative relation to said hinge.

12. In a mine car, a drop door pivotally mounted on the car, a latch'for holding, said door in closed position, a second drop door, and a hinge for attaching said second door to the car comprising a hinge pin and a cam detachably mounted on said hinge pin and operated by said hinge pin to operate'said latch.

13. In a mine car, a drop door pivotally mounted on the car, a latch pivotally mount-- ed on the car and engagingthe free edge of j said door for holding said door in closed position, said latch having open-ended slots therein, a second drop door, hinge straps at-v tached to said second door, hinge' brackets attached to the car and having bearings for supporting said hinge straps, and cams operating with said hinge straps and enga 1n Y in said slots to operate said latch, said ltc holding said cams in operative relation to said hinges. Y

14. In a inine car, a drop door pivotally mounted on the car,-a latch pivotally mounted on the car and engaging the free edge of said door for holding said door in closed po- `holding said cams in operative sition, braces for said latch having laterally projecting arcuate iianges forming openended slots,a second drop door, hinge straps attached to said second attached to the car and having bearings for supporting said hinge straps, and cams 0perating With said hinge straps and engaging in saidi slots to operate said'latch, said latch hinges.

relation tosaid door, hinge brackets In Witness whereof I have hereunto set my ,v

hand. t

LEOPOLD `ALMQUIST. J Y 

